I know, I know..... this is real old tube stuff and there may be
better stuff out there now......

But, for the sake of argument, the Audio Research SP-11 preamp
frequently gets much high praise. You don't hear as much about the
similarly configured ARC SP-15 pre-amp. I would like to get one or the
other.

Would anyone care to offer their opinion or experience as
to which of the two provides the better sound path for
CD's versus for vinyl?

Thanks for your comments.
--
....R L